Dahlia plant named ‘Dodahhypyel 22’

ABSTRACT

A new and distinct cultivar of Dahlia plant named ‘Dodahhypyel 22’, characterized by its broadly upright and uniformly mounding plant habit; moderately vigorous growth habit and moderate growth rate; strong branching habit; dark green-colored leaves; freely flowering habit; large double-type inflorescences with bright yellow-colored ray florets; good postproduction longevity; and good garden performance.

Botanical designation: Dahlia variabilis.

Cultivar denomination: ‘DODAHHYPYEL 22’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

An European Community Plant Breeder's Rights application for the instantplant was filed by the Applicant/Assignee, Dümmen Group B.V. of De Lier,The Netherlands on Feb. 23, 2022, application number 2022/0326. Foreignpriority is not claimed to this application.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Dahliaplant, botanically known as Dahlia variabilis and hereinafter referredto by the name ‘Dodahhypyel 22’.

The new Dahlia plant is a product of a planned breeding programconducted by the Inventors in Hillegom and De Lier, The Netherlands. Theobjective of the breeding program is to create new container Dahliaplants that have a freely branching and flowering habit, dark-coloredleaves, large attractive inflorescences and good postproductionlongevity.

The new Dahlia plant originated from a cross-pollination during theautumn of 2017 in Hillegom, The Netherlands of two unidentifiedproprietary selections of Dahlia variabilis, not patented. The newDahlia plant was discovered and selected by the Inventors as a singleflowering plant from within the progeny of the stated cross-pollinationin a controlled greenhouse environment in Hillegom, The Netherlandsduring the summer of 2018.

Asexual reproduction of the new Dahlia plant by vegetative terminalcuttings in a controlled greenhouse environment in De Lier, TheNetherlands since the autumn of 2018 has shown that the unique featuresof this new Dahlia plant are stable and reproduced true to type insuccessive generations.

SUMMARY OF THE INVENTION

Plants of the new Dahlia have not been observed under all possiblecombinations of environmental conditions and cultural practices. Thephenotype may vary somewhat with variations in environmental conditionssuch as temperature and light intensity, without, however, any variancein genotype.

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘Dodahhypyel 22’. These characteristicsin combination distinguish ‘Dodahhypyel 22’ as a new and distinct Dahliaplant:

-   -   1. Broadly upright and uniformly mounding plant habit.    -   2. Moderately vigorous growth habit and moderate growth rate.    -   3. Strong branching habit.    -   4. Dark green-colored leaves.    -   5. Freely flowering habit.    -   6. Large double-type inflorescences with bright yellow-colored        ray florets.    -   7. Good postproduction longevity.    -   8. Good garden performance.

Compared to plants of the parent selections, plants of the new Dahliadiffer primarily in growth habit as plants of the new Dahlia are moreuniformly branching and mounding than plants of the parent selections.

Plants of the new Dahlia can be compared to plants of Dahlia variabilis‘Hypnotica Lemon Swirl’, not patented. In side-by-side comparisons,plants of the new Dahlia differ primarily from plants of ‘HypnoticaLemon Swirl’ in the following characteristics:

-   -   1. Plants of the new Dahlia are larger and stronger than plants        of ‘Hypnotica Lemon Swirl’.    -   2. Plants of the new Dahlia have larger and darker green-colored        leaves and leaflets than plants of ‘Hypnotica Lemon Swirl’.    -   3. Plants of the new Dahlia have larger and taller        inflorescences than plants of ‘Hypnotica Lemon Swirl’.    -   4. Ray florets of plants of the new Dahlia are bright yellow in        color whereas ray florets of plants of ‘Hypnotica Lemon Swirl’        are yellow and white in color.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph illustrates the overall appearance of thenew Dahlia plant showing the colors as true as it is reasonably possibleto obtain in colored reproductions of this type. Colors in thephotograph may differ slightly from the color values cited in thedetailed botanical description which accurately describe the colors ofthe new Dahlia plant.

The photograph is a side perspective view of a typical flowering plantof ‘Dodahhypyel 22’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and the following observations andmeasurements describe plants grown during the summer in 15-cm containersin a glass-covered greenhouse in De Lier, The Netherlands and underenvironmental conditions and cultural practices which approximate thosegenerally used in commercial potted Dahlia production. During theproduction of the plants, day temperatures ranged from 18° C. to 30° C.,night temperatures ranged from 16° C. to 22° C. and light levels were atleast 135 watt/m². Plants were pinched one time about four weeks aftersticking unrooted cuttings. Plants were twelve weeks old when thephotograph was taken and eleven weeks old when the description wastaken. In the following description, color references are made to TheRoyal Horticultural Society Colour Chart, 2007 Edition, except wheregeneral terms of ordinary dictionary significance are used.

-   Botanical classification: Dahlia variabilis ‘Dodahhypyel 22’.-   Parentage:    -   -   Female, or seed, parent.—Unidentified proprietary selection            of Dahlia variabilis, not patented.        -   Male, or pollen, parent.—Unidentified proprietary selection            of Dahlia variabilis, not patented.-   Propagation:    -   -   Type.—By vegetative terminal cuttings.        -   Time to initiate roots, summer.—About twelve days at            temperatures about 22° C. to 30° C.        -   Time to initiate roots, winter.—About two weeks at            temperatures about 20° C. to 22° C.        -   Time to produce a rooted plant, summer.—About three weeks at            temperatures about 22° C. to 30° C.        -   Time to produce a rooted plant, winter.—About 3.5 weeks at            temperatures about 20° C. to 22° C.        -   Root description.—Medium in thickness, fibrous; typically            whitish grey in color, actual color of the roots is            dependent on substrate composition, water quality,            fertilizers, substrate temperature and age of roots; tuber            development has not been observed on plants of the new            Dahlia.        -   Rooting habit.—Moderately freely branching; medium density.-   Plant description:    -   -   Plant and growth habit.—Broadly upright and uniformly            mounding plant form; broad inverted triangle; moderately            freely basal branching habit with about two primary lateral            branches developing per plant, each primary lateral branch            with about three to five secondary branches; pinching            enhances lateral branch development; inflorescences held            just above the foliar plane on strong peduncles; bushy and            dense habit; moderately vigorous growth habit and moderate            growth rate.        -   Plant height, soil level to top of foliar plane.—About 25            cm.        -   Plant height, soil level to top of floral plane.—About 26            cm.        -   Plant diameter or spread.—About 44 cm.        -   Lateral branches.—Length: About 15 cm. Diameter: About 8 mm.            Internode length: About 2.2 cm. Aspect: Mostly upright to            slightly outwardly spreading. Strength: Moderately strong.            Texture and luster: Smooth, glabrous; semi-glossy. Color:            Close to 146A; at the internodes, close to 145A; with            development, color becoming closer to 146B.-   Leaf description:    -   -   Arrangement.—Opposite; leaves may be single or compound with            three or occasionally five leaflets.        -   Leaf length.—About 21 cm.        -   Leaf width.—About 18 cm.        -   Leaflet length.—About 10.5 cm.        -   Leaflet width.—About 5.5 cm.        -   Leaf and leaflet shape.—Ovate.        -   Leaf and leaflet apex.—Acute.        -   Leaf and leaflet base.—Attenuate.        -   Leaf and leaflet margin.—Dentate; indentations medium in            depth and divergent.        -   Leaf and leaflet venation pattern.—Pinnate.        -   Leaf and leaflet texture and luster, upper surface.—Smooth,            glabrous; semi-glossy.        -   Leaf and leaflet texture and luster, lower surface.—Smooth,            glabrous; matte.        -   Color.—Developing leaves and leaflets, upper surface: Close            to 147A. Developing leaves and leaflets, lower surface:            Close to 139A. Fully expanded leaves and leaflets, upper            surface: Close to 139A; venation, close to 138A. Fully            expanded leaves and leaflets, lower surface: Close to 138C;            venation, close to 138A.        -   Petioles.—Length: About 5.5 cm. Diameter: About 3 mm.            Strength: Moderately strong. Texture and luster, upper and            lower surfaces: Smooth, glabrous; semi-glossy. Color, upper            surface: Close to 139A. Color, lower surface: Close to 138C.-   Inflorescence description:    -   -   Appearance and arrangement.—Double inflorescence form with            ray florets forming acropetally on a receptacle;            inflorescences positioned just above the foliar plane on            strong peduncles; inflorescences face mostly upright; freely            flowering habit with about nine to twelve open            inflorescences per plant at one time.        -   Fragrance.—None detected.        -   Time to flower.—Plants flower continuously from spring until            late summer in The Netherlands; early flowering habit,            plants begin flowering about ten to twelve weeks after            sticking unrooted cuttings.        -   Post-production longevity.—Inflorescences maintain good            substance for about two to three weeks on the plant;            inflorescences persistent.        -   Inflorescence buds.—Height: About 1 cm. Diameter: About            1 cm. Shape: Globular. Texture and luster: Smooth; glossy.            Color: Close to 144B.        -   Inflorescence size.—Diameter: About 9.5 cm. Depth (height):            About 5 cm. Disc diameter: About 1 cm. Receptacle height:            About 5 mm. Receptacle diameter: About 1.7 cm. Receptacle            color: Close to 144B.        -   Ray florets.—Quantity per inflorescence: About 80 to 90            arranged in about eight whorls. Length: About 5 cm. Width:            About 3 cm. Shape: Lanceolate. Apex: Obtuse. Base: Cuneate.            Margin: Entire. Aspect: Initially upright to roughly            perpendicular to the peduncle; somewhat concave. Texture and            luster, upper and lower surfaces: Smooth, glabrous; matte.            Color: When opening and fully opened, upper surface: Close            to 2A; venation, close to 2A; color becoming closer to 1A            with subsequent development. When opening and fully opened,            lower surface: Close to 1A; venation, close to 1A; color            does not change with subsequent development.        -   Disc florets.—Quantity per inflorescence: About 50 to 60;            disc florets are inconspicuous. Length: About 1.2 cm.            Diameter: About 3 mm. Shape: Tubular, elongated; apices            obtuse. Texture and luster: Smooth, glabrous; matte. Color,            when opening and fully opened, inner and outer surfaces:            Close to 1B.        -   Phyllaries.—Quantity per inflorescence: About six arranged            in a single whorl. Length: About 2.5 cm. Width: About 1 cm.            Shape: Lanceolate. Apex: Acute. Base: Cuneate. Margin:            Entire. Texture and luster, upper and lower surfaces:            Smooth, glabrous; matte. Color, upper and lower surfaces:            Close to 137A; venation, close to 137A.        -   Peduncles.—Length, terminal peduncle: About 6.5 cm.            Diameter, terminal peduncle: About 4 mm. Aspect: Mostly            erect to slightly outwardly. Strength: Moderately strong.            Texture and luster: Smooth, glabrous; semi-glossy. Color:            Close to 144B.        -   Reproductive organs.—Androecium: Present on disc florets            only. Stamen quantity per floret: One. Filament length:            About 1.1 cm. Filament color: Close to 4D. Anther size:            About 4 mm by 5 mm. Anther color: Close to 17B. Pollen            amount: Moderate. Pollen color: Close to 17A. Gynoecium:            Present on disc florets only. Pistil quantity per floret:            One. Pistil length: About 1.3 cm. Style length: About            1.1 cm. Style color: Close to 144D. Stigma diameter: Less            than 1 mm. Stigma shape: Round. Stigma color: Close to 144C.            Ovary color: Close to N144C. Seeds: To date, seed            development has not been observed on plants of the new            Dahlia.-   Pathogen & pest resistance: To date, plants of the new Dahlia have    not been observed to be resistant to pathogens and pests common to    Dahlia plants.-   Temperature tolerance & garden performance: Plants of the new Dahlia    tolerate high temperatures about 35° C. and short periods of low    temperatures about 5° to 10° C. Plants of the new Dahlia have been    observed to have good garden performance.

It is claimed:
 1. A new and distinct Dahlia plant named ‘Dodahhypyel 22’as illustrated and described.